Box-mandrel



M. B. DISKIN.

BOX MANDREL.

APPLCATION FILED IAN. Il, l919. 1,343,997. Patented June 22, 1920.

l. 2 SHEETS-SHEET l. ld Z A TTORNEYS.

M. B. DISKIN.

Box MANDREL.

APPLICATION FILED JAN. Il, 1919. 1 ,343,907. Patented June 22, 1920.

2 SHEETS-SHEET 2V -Fff 6o 2l /l-:Uun 19 `T l 15 ([51 ``r2l 6D. Cb

l Z4 l5 WIT/wss.- INVENTOR.

ATTORNEYJ'.

- beard andsilnilarlb UNI-TED STMes,

PATENT OFI-16151,l

- iviosns B. DIsKIN, oF'NEvv YoPiK; n. Y.

Ommeren e Beit knQWn that Disnin, a Citizen ef the United States'J-iesiding at NeuT York, in the eeunty of New York and State of NexvzYorlghave invented certain new and useful Improvements in B0X-'Mandrels; andr I do hereby de'lare the followine' to be afull, clear, and exact description 0i the inventiommsueh as will venable lothers skilled in, the art to2 which it appertains te Ieek'iee Peper, Gerd:

. S01 eenteifieee, audit ijs.. the pfin'iery 3012i eetfef 'the iinventen te Provide, ,novel and., impefed; iilendrel K Qi ferm Whielris' vadjustable to varie'usi sizes, bethingleeeth eedvvdth- Anonle11-objey t' Off theiixivntin'v is. the

Chiel errferrri for .use

adjusting@ ofA` Athe.reame;.fet einem render thed'samepsubstantial vConstruction inthe various adjustments.

Alffumhe e; 1

`nevel endlm. rove A111011ritilleY,fer the inan-` there@ and when@ @h tpizire te be .fifmly held in any 'ediufste A pefsten, Sieh meenting permitting of.v independent adjustments et the mandrel for different lengths and Widths-:1 t i Al Seu ,fun-,her @tiges they@ igionef 'sueh a mounting fer the mandremlpeated llteler,1y` thereei and. of ,Sueh f eenetrctwn i independent adjustments ,l bety `=d1reetiens een be mail@ and. thelpeiftsl firmly damped and helden@ adjust; entes navebenmade. ,l It e ne@ he bjee `er @he` inventidnjtb pevf'e Slihlge 'elflleifi Whehsv Geniparatively simple and inexp'ensivet yas' Well as b'eingpraetieal eieaeidusiin use. llVihL the fdreeeirig' iiindethr Obieefe. in

view' then-.win Je' @maree e; the'. descrip- 'man rel 'The , specificationofmeesmefft: raf/enterarme 1920: Application filed Janary 11, 1919. serial No. 276,699.`

y 2r-is alengiturdinal section taken on .the line 2 2 of Fig. 1, portins being sliovvn 1n elevation. l

N'Fig. Sis aplan porting bleek. K N y A i i LF` g, 4 is a plan View of one o'f the teggle levers. L

Fig.' is` a fragmentar plan view, loking epp'osite to the lineof VView in Fig, l, showlng ene efhegientsef theftegglrwith the mandrel proper, pertions being shvvnin section. t

mandrel proper is f rectangular .ffjrrm'` and 'eomprises angular or L-shaped eerner pieces or seetions 1 vformed of sheet metal, and `havingtheir wings arranged at right angles With one another, and the Inan- `dreiifurtherincludes side,platee'` 2 and end Pletee 3 everleri Wings,` Irespeetive of the cerner Apieces or g'etien'sj1-J/The ,Side 'and end plates are 'at `view/Of the @en Sap;

ing.y the, long and show f eide of the corner pieces,V and the eeerner pieee'ls p'rvide the ferm on which the madeor vvrked en, the side and end plates filling thespalces'betvveen the cernerpieeesT The cerner pieces ares'lida'bly ,cnneeted With the side and endplaitres, thus permitting `the*mandrel te be adjusted to different length/s and widths, and in order sli dablv yeonrfieet the partsl er, 'sferetins of the mandrel in an effective and subtan'tial mennen. the edgesof thesde .endend plte bent inwardly t0 flil beafdSA, which Servei @o ,st iffri th; maremma `if desiree reinfoigeing ,Wires 5Jea`n be leated Within the heads' 4. The edges `ff ,thewvings'xef the c orf iegeenf te he beefe' 4.a .theel Stiffeiii1ie-vthelips A 6 and makin the stru'eture more'` substantial l vvai'dly kf utfoftl1ev Way' to'y stiifen the parts,

aiidto also make the Sliding eenneetins strenger;

l Soeket embers 8y can be seeured vvithin -the angles ofthe cerner` pieces l fOr the reception of peste (not shown) to provide .extensions fry the corners'y Oi the mandrel,

as this feature :is Well knewn, it need not be lConsidered further.v

The mounting for the mandrel includes strips or plates 9 riveted or otherwise secured to the inner surfaces ol the side and end plates 2 and 3, each of said plates 9 being provided with an inwardly projecting lug 10, and two pairs of guide and supporting bars 11 having their outer ends seated within notches or seats 12 in the lugs 10 and secured thereto by means of rivets 13 extending through said lugs. One pair oi bars 1i is located longitiulinally 'from oneend plate to the other, whilethe other pair oi' bars 1l is located transversely, eX- tendiiig from one side plate 2 tothe other, so that the Atwo pairs ofbars 11 cross one another, the bars 01E each pair overlap one another longitudinally 'for sliding adjustnent. rlhe bars 11 are rigidly secnrcd'tothe side and end plates, through themediuin ot the `lugs 10'and plates 9, in order to assist in supporting the mandrel and holding it firmly in position. Y

ln order to support and guide the bars 11, a supporting block le is provided at the center ot the mandrel, one side of saidblock being provided withvgrooves or channels 15 extending across the face thereof for receiving the overlapping portions of the bars 11, one groove 15 being deeper than the other, as shown in Fig. 2, in order that the bars 11 can cross within the block, it being noted that the bars 11 are in different planes. The bars fit snugly in the grooves or channels .15, thus preventing transverse displacement of said bars, although permitting longitudinal sliding movement thereof. A plate 1G is secured to said side ot the block 141 over the grooves 15 by means oi screws 17 or the like, thereby retaining the bars 11 within the grooves with a snug lit, yet permitting longitudinal sliding movement of said bars.

This plate 1G is carried by a yoke 1S that has a portion 19 Ator attachment to a supporting standard or the like. The yoke 18 thus supports the plate 16 and block' 14, which in turn support the bars 11 and other parts that extend from the block 14 to the mandrel proper. A i

Asy a means for facilitating the adjustnient oit the mandrel ,and for clamping or holding the parts in position after adjustment is made, that side of the block 14C opposite to the grooves 1.5 has a boss 2O provided with stud 21 into which a clamping screw 22 is threaded. Two pairs of crossed levers 23 are mounted on the stud 21, cach lever having an opening 24 between its ends to receive the stud 21, and toggle linksj25 are pivoted to the levers 23 by means of rivets or the like, and converge to and engage the rivets 13 at those sides of the lugs 10 opposite to the bars 11, as seen in Fig. 2. The levers 23 that are connected-to the side plates 2 are of shorter length than the levers 23 that are connected to the end-plates 3, in proportion to the distances between said plates, and it will be understood that between each pair'of plates 2 and 3, there is a pair of crossed toggled levers 23 having their ends connected by links 25 with the respective plates.

To adiust the mandrel, the screw-22 is loosened, which may be readily turned by the thumb and fingers, and this loosens the levers E23. Then, the end plates 3 can be moved toward and away ifrom one another to adjust the mandrel to the length desired, within the limits oif the adjustment permitted, and likewise the side plates 2A can be tino'ved toward and away from one another to adjust the mandrel to the desired width. .lt will be noted that the toggle mechanism constrains. the plates of each pair to move equal distances from the renter of the mand rel, whereby the mandrel in all adj iistmeiits is disposed concentric with the supporting means. Furthermore, the side and end plates can be adjusted independently-without interference'or destroying the adjustment of either. Thus, when thesideplates 2 are adjusted, the bar's'll and toggle thereof will move, and the plates 3 and their bars 11 and toggle remain stationary, whereas when the plates 3 are adjusted, the plates'2 will remain .stationary with theirbars 11. Thus, the bars 11 of each pairv of plates prevent said plates frommoving endwise when adjustments are being made, whilethe toggle mechanism constrains fthe platesof each pair to move the saine distance from the center. 4'l`i ig 1,'ether, theha-rs 11 and to'gglevdevices support the mandrel from the interior thereof iii a firm yand substantial manner and when the screw `22 is tightened after adjustments have Abeen made, the levers 23 will be clamped on the stud 21, thereby preventing further movement of the parts of the mandrel, and holdingthem in their adjusted position.y l v Having thus Vdescribed the invention, what 'is claimed as new is i i 1; A mandrel having opposite adjustable portions movable toward and away from one another, a supporting member located centrally within the mandrel, anda toggle device including a pair' of crossed levers pivotally connected at their point oticrossing to said member, and links connectin(r said levers and portions, so as to constrain said portions for simultaneous movement to-` ward and away from said member;

2. mandrel embodyingtwo pairs of opposite plates, a supportingA member located centrally within Athe mandrel, andan independent toggle` device `connecting each pair of opposite plates 'with the supporting member, to constrain the corresponding pair of plates for simultaneous movement toward and awayfrom'said member, and providing for individual adjustment of each pair of Aplates independently of the other pair of crossed levers pivoted at their point of cross-V ing to said member,V and links connecting each pair of levers with the plates of the corresponding pair to provide a toggle device for constraining said plates for simultaneous movement toward and away from said member.

v el. A mandrel having pairs of opposite plates, corner pieces slidably connecting them, a supporting member located centrally within the mandrel, pairs of overlapping bars secured to said plates, and slidable in said member in crossed relation, and a toggle device between each pair of plates and said member for constraining said plates for simultaneous movement toward and away from said member` and means for clamping some of said parts to said member to hold said plates in position. n

5. A mandrel having side and end plates, corner pieces slidably engaging them, a central block having crossed channels and a stud, pairs of overlapping bars secured to said plates and fitting slidably in said channels, pairs of crossed toggle levers mounted on said stud, toggle links connected to said levers and the respective side and end plates, and clamping means carried by said stud for clamping said levers thereon.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MOSES B. DISKIN. Witnesses SARA NUssBAUM, MORRIS SATTEGRUE. 

